Nios II CPU with debug module not detected

i used the same script to mount the USB-BLASTER and then when tried to use nios2-flash-programmer the same problem appeared, "There are no Nios II CPUs with debug modules available which match the values specified. Please check that your PLD is correctly configured, downloading a new SOF file if necessary.",

and with this simple step it got solved (worked for the version of altera software 10.0 on Ubuntu lucid lynx)

what i did was running the script (it only runned when i wrote all the directory) for example in my case was:

bighead@bighead-laptop:~$'/home/bighead/altera/10.0/nios2eds/nios2_command_shell.sh'

and after that it printed

------------------------------------------------

Altera Nios2 Command Shell [GCC 4]

Version 10.0, Build 218

------------------------------------------------

and then everything stays like a normal gnome-terminal, the diference now is that the bin aplications like nios2-flash-programer detects the debug hardware and work(obviusly you have to configure the FPGA with DE1-NIOS.sof in my case that comes with the board demostration circuits)

even using the gui for the flash programmer it works (because it wasnt detecting it either)